[gold] split up NewHandlers test
[gold] split up NewHandlers test

Change-Id: I8646811066c3a166982ce88cf001c50e3e62fddf
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/267043
Commit-Queue: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Reviewed-by: Leandro Lovisolo <f558143c2568be8d55575d13f30a1fc5cb8009d5@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot